Apple system problems need to reinstall, how to use a U disk to restore it? Here's how to use a U disk to install Mac OS.
First, is to prepare a U disk 8G or more, there is a Mac OS installation CD-ROM, if there is no disc can also use mirrored files.
Second, into the Mac OS, open Disk Tools, the U disk format into the Mac OS extended format. Then select "Restore".
Third, drag the Mac OS Installation CD icon on the left to the "source disk" location, and drag the left U disk icon to the "destination disk" location. Click "Restore", the system pop-up warning and enter account password to start making installation u disk.
The production process is long and takes about 20-30 minutes.
Long waiting for Mac OS to install the U disk finally made a success. Reboot the system long press ALT to pull up the boot menu, you can already see the Mac OS Setup disk icon, select the icon to start installing the Mac. Using a U disk installs faster than the CD, and the installation process is no different than using a CD-ROM installation.